
<template>
  <view class="uni-container">
    <uni-forms ref="form" :value="formData" validateTrigger="bind">
      <uni-forms-item name="bannerfile" label="图片文件" required>
  <uni-file-picker file-mediatype="image" return-type="object" v-model="formData.bannerfile" />
</uni-forms-item>
<uni-forms-item name="open_url" label="点击目标地址">
  <uni-easyinput placeholder="点击跳转目标地址。如果是web地址则使用内置web-view打开；如果是本地页面则跳转本地页面；如果是schema地址则打开本地的app" v-model="formData.open_url" trim="both" />
</uni-forms-item>
<uni-forms-item name="title" label="标题">
  <uni-easyinput placeholder="标题。为避免背景图和前景文字靠色导致看不清，建议使用把标题作为图片的一部分来处理。如可以保证不靠色，则可以使用本字段，或者额外扩展title_color、title_bgcolor等字段" v-model="formData.title" trim="both" />
</uni-forms-item>
<uni-forms-item name="sort" label="排序">
  <uni-easyinput placeholder="数字越小，排序越前" type="number" v-model="formData.sort" />
</uni-forms-item>
<uni-forms-item name="category_id" label="分类id">
  <uni-easyinput placeholder="多个栏目的banner都存在一个表里时可用这个字段区分" v-model="formData.category_id" />
</uni-forms-item>
<uni-forms-item name="status" label="生效状态">
  <switch @change="binddata('status', $event.detail.value)" :checked="formData.status" />
</uni-forms-item>
<uni-forms-item name="description" label="备注">
  <uni-easyinput placeholder="维护者自用描述" v-model="formData.description" trim="both" />
</uni-forms-item>

      <view class="uni-button-group">
        <button type="primary" class="uni-button" style="width: 100px;" @click="submit">提交</button>
        <navigator open-type="navigateBack" style="margin-left: 15px;">
            <button class="uni-button" style="width: 100px;">返回</button>
        </navigator>
      </view>
    </uni-forms>
  </view>
</template>

<script>
  import { validator } from '@/js_sdk/validator/opendb-banner.js';

  const db = uniCloud.database();
  const dbCmd = db.command;
  const dbCollectionName = 'opendb-banner';

  function getValidator(fields) {
    let reuslt = {}
    for (let key in validator) {
      if (fields.includes(key)) {
        reuslt[key] = validator[key]
      }
    }
    return reuslt
  }

  export default {
    data() {
      return {
        formData: {
  "bannerfile": null,
  "open_url": "",
  "title": "",
  "sort": null,
  "category_id": "",
  "status": true,
  "description": ""
},
        formOptions: {},
        rules: {
          ...getValidator(["bannerfile","open_url","title","sort","category_id","status","description"])
        }
      }
    },
    onReady() {
      this.$refs.form.setRules(this.rules)
    },
    methods: {
      /**
       * 触发表单提交
       */
      submit() {
        uni.showLoading({
          mask: true
        })
        this.$refs.form.submit().then((res) => {
          this.submitForm(res)
        }).catch((errors) => {
          uni.hideLoading()
        })
      },

      submitForm(value) {
        // 使用 clientDB 提交数据
        db.collection(dbCollectionName).add(value).then((res) => {
          uni.showToast({
            title: '新增成功'
          })
          this.getOpenerEventChannel().emit('refreshData')
          setTimeout(() => uni.navigateBack(), 500)
        }).catch((err) => {
          uni.showModal({
            content: err.message || '请求服务失败',
            showCancel: false
          })
        }).finally(() => {
          uni.hideLoading()
        })
      }
    }
  }
</script>
